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| Title | Publication | Publish Year |
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Lumber Recovery from Second-Growth Douglas-Fir in British Columbia
Lumber recovery results were taken from 80, 100, and 150 year-old Douglas-fir, from sites with area site indices of 150, 135, and 165 respectively from southeastern Vancouver Island in British […]
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Forest Products Journal | 1964 |
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Lumber Stains and Their Control in Northern White Pine
Northern white pine (Pinus strobus L.) logs and lumber frequently develop stains which reduce their value. Losses from staining have increased with increased summer logging and from increased proportions of […]
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Forest Products Journal | 1953 |
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Lumber strength grading using x-ray scanning
A multi-channel x-ray scanner is described that can be used to estimate lumber strength. The scanner measures lumber density at about 1-inch intervals along the full length and width of […]
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Forest Products Journal | 2001 |
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Lumber Unloading Facilities
The Red Lion Cabinet Company, Red Lion, Pennsylvania, which handles up to 200,000 board feet of green hardwood lumber per week, has installed an improved railroad unloading system. The unloading […]
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Forest Products Journal | 1952 |
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Lumber Values from Beetle-Killed Lodgepole Pine
The study of lodgepole pine attacked by mountain pine beetles (Dendroctonus ponderosae Hopk.) in the East Kootenay region of British Columbia, Canada, shows that positive conversion returns for lumber manufacture […]
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Forest Products Journal | 1978 |
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Lumber Yields and Values from Dead, Standing Alpine Fir
An interim classification system used by the British Columbia Forest Service (BCFS) for dead, standing alpine fir recognizes two groups: 1) trees with broken tops, or with tops broken at […]
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Forest Products Journal | 1978 |
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Lumber: A Vital Commodity in Support of Our Military Forces
Lumber plays such a vital role in the needs of our military forces that a special agency of the Department of Defense is designated for the sole purpose of procuring […]
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Forest Products Journal | 1969 |
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LVL: Laminated Veneer Lumber, Development and Economics
Laminated lumber standards permit increased working stresses in bending up to 50 percent more than those allowed for dimension lumber. Recent investigations have demonstrated that glued-laminated beams made from rotary-peeled […]
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Forest Products Journal | 1972 |
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Machine Stress Rated Lumber: Challenge to Design
Machine stress rating (MSR) principles of nondestructive testing improve the design potential of lumber through segregation by modulus of elasticity as well as by identification of allowable fiber stress levels. […]
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Forest Products Journal | 1970 |
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Magnefite Pulping of Douglas-Fir
Since considerable variation in pulping results are attributable to raw material, heartwood and springwood content and permeability of the wood should be considered in pulping Douglas-fir, particularly by either the […]
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Forest Products Journal | 1961 |
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Manual strand orientation as a means of improving the flexural properties of wood-wool cement boards in the Philippines
In the Philippines, wood-wool cement boards (WWCBs) are manufactured from plantation hardwoods in labor-intensive, small-to-medium scale plants. In the majority of these plants, cement-coated wood-wool (excelsior) strands are randomly formed […]
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Forest Products Journal | 2002 |
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Marine Wood Chafing: An Illustrated Comment
Although pressure treatment with preservatives effectively protects Douglas-fir from biological deterioration, the treatment penetrates only the narrow sapwood band, leaving the heartwood core untreated. This core is frequently exposed by […]
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Forest Products Journal | 1985 |
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Market Outlook for the Southern Pine Glue-Laminating Industry
Church construction, which was the mainstay for southern pine structural laminates through the mid 1960’s, was at a level in 1969 nearly 30 percent below that of 10 years ago. […]
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Forest Products Journal | 1970 |
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Market Values and Problems Associated with Utilization of Dead Timber
Dead timber suffers a series of incremental losses: 1) logging and handling losses in the woods and mill yard, 2) decreased lumber volume from logs sawed, and 3) degrade of […]
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Forest Products Journal | 1977 |
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Marketing Research for Primary Processors of Northern Softwood Lumber
Retail lumberyards were contacted in 15 north central and northeastern states concerning their trade in softwood dimension lumber. Spruce-pine-fir holds the largest market share of any species group, and over […]
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Forest Products Journal | 1984 |
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Marketing strategies of softwood sawmills in western North America
Properly conceived and implemented marketing strategies can have a significant impact on company performance. Little up-to-date work exists regarding the marketing strategies used by the forest products industry in North […]
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Forest Products Journal | 2002 |
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Maturation of Ray Parenchyma Cells in Pine
In the ray parenchyma of hard pines, development of pitted walls and lignification is generally delayed. Maturation appears to take place gradually with aging of the sapwood in the hard […]
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Forest Products Journal | 1967 |
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Maximum Safe Initial Moisture Content for Press-Drying Oak Lumber Without Honeycomb
Kiln-drying 1-inch-thick oak lumber usually requires 1 to several weeks. Press-drying requires only about 1 hour, but honeycomb is usually so severe that the dried lumber is unfit for any […]
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Forest Products Journal | 1984 |
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Measured and Actual Strength Ratio of Utility Grade Studs
To determine how well strength ratio (SR) predicts stud strength, samples of Douglas-fir and Engelmann spruce studs of Utility grade were measured for their defects and tested destructively. Measured SR’s […]
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Forest Products Journal | 1979 |
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Measurement of Glue Line Viscosity
Describes in some detail an instrument that indicates the changes in viscosity of a glue line under hot pressing conditions. The conditions employed were chosen to simulate those used in […]
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Forest Products Journal | 1968 |
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Measurement of Layer-Strength Distribution in Particleboard
A torsion-shear technique for analyzing the layer-strength profile of particleboard was developed as a simple alternative to the layer-density technique. The shear-strength profile through the thickness of particleboard can be […]
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Forest Products Journal | 1970 |
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Measurement of the bark/wood shear strength: practical methods to evaluate debarking resistance of Norway spruce and Scots pine pulpwood
The purpose of this study was to describe how the ability to debark can change due to log storage and to explore a practical method to measure the freshness of […]
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Forest Products Journal | 1996 |
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Measuring General Slope of Grain with the Slope-Of-Grain Indicator
A signal processing system was developed so that the commercial slope-of-grain indicator could effectively measure general slope of grain in dimension lumber. This general slope of grain measurement was not […]
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Forest Products Journal | 1984 |
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Measuring Localized Slope of Grain By Electrical Capacitance
Electrical capacitance was found to be effective for measuring localized slope of grain in lumber. When slope-of-grain measurements were taken incrementally every 1/4 inch along and across the faces of […]
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Forest Products Journal | 1986 |
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Mechanical Characteristics of 21-Year-Old Weathered Nailed Joints
Nailed plywood-lumber joints were cut from the sidewalls of portable hog houses of single-skin type construction. The plywood houses had shown remarkable performance after at least 21 years of continuous […]
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Forest Products Journal | 1975 |